Home / 6,432.40-8,871.70-4,307.25

Finding the Fourth Proportional to 6,432.40, 8,871.70 and 4,307.25

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Solution

The fourth proportional to 6,432.40, 8,871.70 and 4,307.25 is: 5,940.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,432.40 : 8,871.70 = 4,307.25 : x
  2. Step 2: Convert to fraction form
    6,432.40/8,871.70 = 4,307.25/x
  3. Step 3: Cross multiply
    6,432.40x = 8,871.70 × 4,307.25
  4. Step 4: Simplify right side
    6,432.40x = 38,212,629.83
  5. Step 5: Solve for x
    x = 38,212,629.83/6,432.40
  6. Step 6: Final answer
    x = 5,940.65

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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.