Home / 6,145.60-9,218.40-4,590.40

Finding the Fourth Proportional to 6,145.60, 9,218.40 and 4,590.40

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Solution

The fourth proportional to 6,145.60, 9,218.40 and 4,590.40 is: 6,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.60 : 9,218.40 = 4,590.40 : x
  2. Step 2: Convert to fraction form
    6,145.60/9,218.40 = 4,590.40/x
  3. Step 3: Cross multiply
    6,145.60x = 9,218.40 × 4,590.40
  4. Step 4: Simplify right side
    6,145.60x = 42,316,143.36
  5. Step 5: Solve for x
    x = 42,316,143.36/6,145.60
  6. Step 6: Final answer
    x = 6,885.60

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Similar ratio
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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.