Home / 7,639.02-10,542.14-4,281.86

Finding the Fourth Proportional to 7,639.02, 10,542.14 and 4,281.86

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Solution

The fourth proportional to 7,639.02, 10,542.14 and 4,281.86 is: 5,909.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.02 : 10,542.14 = 4,281.86 : x
  2. Step 2: Convert to fraction form
    7,639.02/10,542.14 = 4,281.86/x
  3. Step 3: Cross multiply
    7,639.02x = 10,542.14 × 4,281.86
  4. Step 4: Simplify right side
    7,639.02x = 45,139,967.58
  5. Step 5: Solve for x
    x = 45,139,967.58/7,639.02
  6. Step 6: Final answer
    x = 5,909.13

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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.