Home / 7,320.60-10,101.78-4,176.04

Finding the Fourth Proportional to 7,320.60, 10,101.78 and 4,176.04

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Solution

The fourth proportional to 7,320.60, 10,101.78 and 4,176.04 is: 5,762.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.60 : 10,101.78 = 4,176.04 : x
  2. Step 2: Convert to fraction form
    7,320.60/10,101.78 = 4,176.04/x
  3. Step 3: Cross multiply
    7,320.60x = 10,101.78 × 4,176.04
  4. Step 4: Simplify right side
    7,320.60x = 42,185,437.35
  5. Step 5: Solve for x
    x = 42,185,437.35/7,320.60
  6. Step 6: Final answer
    x = 5,762.57

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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.