Home / 6,837.60-9,432.78-4,148.40

Finding the Fourth Proportional to 6,837.60, 9,432.78 and 4,148.40

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Solution

The fourth proportional to 6,837.60, 9,432.78 and 4,148.40 is: 5,722.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,837.60 : 9,432.78 = 4,148.40 : x
  2. Step 2: Convert to fraction form
    6,837.60/9,432.78 = 4,148.40/x
  3. Step 3: Cross multiply
    6,837.60x = 9,432.78 × 4,148.40
  4. Step 4: Simplify right side
    6,837.60x = 39,130,944.55
  5. Step 5: Solve for x
    x = 39,130,944.55/6,837.60
  6. Step 6: Final answer
    x = 5,722.91

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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.