Home / 1,577.22-2,176.53-914.10

Finding the Fourth Proportional to 1,577.22, 2,176.53 and 914.10

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Solution

The fourth proportional to 1,577.22, 2,176.53 and 914.10 is: 1,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.22 : 2,176.53 = 914.10 : x
  2. Step 2: Convert to fraction form
    1,577.22/2,176.53 = 914.10/x
  3. Step 3: Cross multiply
    1,577.22x = 2,176.53 × 914.10
  4. Step 4: Simplify right side
    1,577.22x = 1,989,566.07
  5. Step 5: Solve for x
    x = 1,989,566.07/1,577.22
  6. Step 6: Final answer
    x = 1,261.44

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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.