Home / 7,710.10-10,639.28-4,353.06

Finding the Fourth Proportional to 7,710.10, 10,639.28 and 4,353.06

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Solution

The fourth proportional to 7,710.10, 10,639.28 and 4,353.06 is: 6,006.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710.10 : 10,639.28 = 4,353.06 : x
  2. Step 2: Convert to fraction form
    7,710.10/10,639.28 = 4,353.06/x
  3. Step 3: Cross multiply
    7,710.10x = 10,639.28 × 4,353.06
  4. Step 4: Simplify right side
    7,710.10x = 46,313,424.20
  5. Step 5: Solve for x
    x = 46,313,424.20/7,710.10
  6. Step 6: Final answer
    x = 6,006.85

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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.