Home / 5,101.76-7,653.12-1,639.52

Finding the Fourth Proportional to 5,101.76, 7,653.12 and 1,639.52

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Solution

The fourth proportional to 5,101.76, 7,653.12 and 1,639.52 is: 2,459.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.76 : 7,653.12 = 1,639.52 : x
  2. Step 2: Convert to fraction form
    5,101.76/7,653.12 = 1,639.52/x
  3. Step 3: Cross multiply
    5,101.76x = 7,653.12 × 1,639.52
  4. Step 4: Simplify right side
    5,101.76x = 12,547,443.30
  5. Step 5: Solve for x
    x = 12,547,443.30/5,101.76
  6. Step 6: Final answer
    x = 2,459.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.