Home / 1,612.68-2,225.48-914.05

Finding the Fourth Proportional to 1,612.68, 2,225.48 and 914.05

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Solution

The fourth proportional to 1,612.68, 2,225.48 and 914.05 is: 1,261.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.68 : 2,225.48 = 914.05 : x
  2. Step 2: Convert to fraction form
    1,612.68/2,225.48 = 914.05/x
  3. Step 3: Cross multiply
    1,612.68x = 2,225.48 × 914.05
  4. Step 4: Simplify right side
    1,612.68x = 2,034,199.99
  5. Step 5: Solve for x
    x = 2,034,199.99/1,612.68
  6. Step 6: Final answer
    x = 1,261.38

Related Problems

Find fourth proportional to 806.34, 1,112.74 and 457.03
Half scale
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Double scale
Find fourth proportional to 1,613.68, 2,226.86 and 915.05
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.