Home / 3,152.34-4,728.51-1,421.46

Finding the Fourth Proportional to 3,152.34, 4,728.51 and 1,421.46

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Solution

The fourth proportional to 3,152.34, 4,728.51 and 1,421.46 is: 2,132.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.34 : 4,728.51 = 1,421.46 : x
  2. Step 2: Convert to fraction form
    3,152.34/4,728.51 = 1,421.46/x
  3. Step 3: Cross multiply
    3,152.34x = 4,728.51 × 1,421.46
  4. Step 4: Simplify right side
    3,152.34x = 6,721,387.82
  5. Step 5: Solve for x
    x = 6,721,387.82/3,152.34
  6. Step 6: Final answer
    x = 2,132.19

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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.