Home / 7,432.32-10,256.64-4,120.32

Finding the Fourth Proportional to 7,432.32, 10,256.64 and 4,120.32

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Solution

The fourth proportional to 7,432.32, 10,256.64 and 4,120.32 is: 5,686.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,432.32 : 10,256.64 = 4,120.32 : x
  2. Step 2: Convert to fraction form
    7,432.32/10,256.64 = 4,120.32/x
  3. Step 3: Cross multiply
    7,432.32x = 10,256.64 × 4,120.32
  4. Step 4: Simplify right side
    7,432.32x = 42,260,638.92
  5. Step 5: Solve for x
    x = 42,260,638.92/7,432.32
  6. Step 6: Final answer
    x = 5,686.06

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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.