Home / 5,985.12-8,979.60-4,445.28

Finding the Fourth Proportional to 5,985.12, 8,979.60 and 4,445.28

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Solution

The fourth proportional to 5,985.12, 8,979.60 and 4,445.28 is: 6,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,985.12 : 8,979.60 = 4,445.28 : x
  2. Step 2: Convert to fraction form
    5,985.12/8,979.60 = 4,445.28/x
  3. Step 3: Cross multiply
    5,985.12x = 8,979.60 × 4,445.28
  4. Step 4: Simplify right side
    5,985.12x = 39,916,836.29
  5. Step 5: Solve for x
    x = 39,916,836.29/5,985.12
  6. Step 6: Final answer
    x = 6,669.35

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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.