Home / 7,528.57-10,390.88-4,343.92

Finding the Fourth Proportional to 7,528.57, 10,390.88 and 4,343.92

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Solution

The fourth proportional to 7,528.57, 10,390.88 and 4,343.92 is: 5,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.57 : 10,390.88 = 4,343.92 : x
  2. Step 2: Convert to fraction form
    7,528.57/10,390.88 = 4,343.92/x
  3. Step 3: Cross multiply
    7,528.57x = 10,390.88 × 4,343.92
  4. Step 4: Simplify right side
    7,528.57x = 45,137,151.45
  5. Step 5: Solve for x
    x = 45,137,151.45/7,528.57
  6. Step 6: Final answer
    x = 5,995.45

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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.