Home / 6,417.52-8,858.46-3,898.60

Finding the Fourth Proportional to 6,417.52, 8,858.46 and 3,898.60

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Solution

The fourth proportional to 6,417.52, 8,858.46 and 3,898.60 is: 5,381.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,417.52 : 8,858.46 = 3,898.60 : x
  2. Step 2: Convert to fraction form
    6,417.52/8,858.46 = 3,898.60/x
  3. Step 3: Cross multiply
    6,417.52x = 8,858.46 × 3,898.60
  4. Step 4: Simplify right side
    6,417.52x = 34,535,592.16
  5. Step 5: Solve for x
    x = 34,535,592.16/6,417.52
  6. Step 6: Final answer
    x = 5,381.45

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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.