Home / 4,278.52-6,417.90-1,317.04

Finding the Fourth Proportional to 4,278.52, 6,417.90 and 1,317.04

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Solution

The fourth proportional to 4,278.52, 6,417.90 and 1,317.04 is: 1,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.52 : 6,417.90 = 1,317.04 : x
  2. Step 2: Convert to fraction form
    4,278.52/6,417.90 = 1,317.04/x
  3. Step 3: Cross multiply
    4,278.52x = 6,417.90 × 1,317.04
  4. Step 4: Simplify right side
    4,278.52x = 8,452,631.02
  5. Step 5: Solve for x
    x = 8,452,631.02/4,278.52
  6. Step 6: Final answer
    x = 1,975.60

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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.