Home / 2,280.32-3,417.60-980.36

Finding the Fourth Proportional to 2,280.32, 3,417.60 and 980.36

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Solution

The fourth proportional to 2,280.32, 3,417.60 and 980.36 is: 1,469.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.32 : 3,417.60 = 980.36 : x
  2. Step 2: Convert to fraction form
    2,280.32/3,417.60 = 980.36/x
  3. Step 3: Cross multiply
    2,280.32x = 3,417.60 × 980.36
  4. Step 4: Simplify right side
    2,280.32x = 3,350,478.34
  5. Step 5: Solve for x
    x = 3,350,478.34/2,280.32
  6. Step 6: Final answer
    x = 1,469.30

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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.