Home / 2,088.77-2,880.51-1,249.34

Finding the Fourth Proportional to 2,088.77, 2,880.51 and 1,249.34

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Solution

The fourth proportional to 2,088.77, 2,880.51 and 1,249.34 is: 1,722.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.77 : 2,880.51 = 1,249.34 : x
  2. Step 2: Convert to fraction form
    2,088.77/2,880.51 = 1,249.34/x
  3. Step 3: Cross multiply
    2,088.77x = 2,880.51 × 1,249.34
  4. Step 4: Simplify right side
    2,088.77x = 3,598,728.35
  5. Step 5: Solve for x
    x = 3,598,728.35/2,088.77
  6. Step 6: Final answer
    x = 1,722.89

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Half scale
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Double scale
Find fourth proportional to 2,089.77, 2,881.89 and 1,250.34
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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.