Home / 5,447.04-8,157.56-2,978.16

Finding the Fourth Proportional to 5,447.04, 8,157.56 and 2,978.16

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Solution

The fourth proportional to 5,447.04, 8,157.56 and 2,978.16 is: 4,460.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.04 : 8,157.56 = 2,978.16 : x
  2. Step 2: Convert to fraction form
    5,447.04/8,157.56 = 2,978.16/x
  3. Step 3: Cross multiply
    5,447.04x = 8,157.56 × 2,978.16
  4. Step 4: Simplify right side
    5,447.04x = 24,294,518.89
  5. Step 5: Solve for x
    x = 24,294,518.89/5,447.04
  6. Step 6: Final answer
    x = 4,460.13

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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.