Home / 2,710.60-3,740.84-1,531.80

Finding the Fourth Proportional to 2,710.60, 3,740.84 and 1,531.80

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Solution

The fourth proportional to 2,710.60, 3,740.84 and 1,531.80 is: 2,114.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,710.60 : 3,740.84 = 1,531.80 : x
  2. Step 2: Convert to fraction form
    2,710.60/3,740.84 = 1,531.80/x
  3. Step 3: Cross multiply
    2,710.60x = 3,740.84 × 1,531.80
  4. Step 4: Simplify right side
    2,710.60x = 5,730,218.71
  5. Step 5: Solve for x
    x = 5,730,218.71/2,710.60
  6. Step 6: Final answer
    x = 2,114.00

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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.