Home / 5,332.40-7,998.60-1,869.20

Finding the Fourth Proportional to 5,332.40, 7,998.60 and 1,869.20

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Solution

The fourth proportional to 5,332.40, 7,998.60 and 1,869.20 is: 2,803.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,332.40 : 7,998.60 = 1,869.20 : x
  2. Step 2: Convert to fraction form
    5,332.40/7,998.60 = 1,869.20/x
  3. Step 3: Cross multiply
    5,332.40x = 7,998.60 × 1,869.20
  4. Step 4: Simplify right side
    5,332.40x = 14,950,983.12
  5. Step 5: Solve for x
    x = 14,950,983.12/5,332.40
  6. Step 6: Final answer
    x = 2,803.80

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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.