Home / 1,307.08-1,959.90-1,282.60

Finding the Fourth Proportional to 1,307.08, 1,959.90 and 1,282.60

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Solution

The fourth proportional to 1,307.08, 1,959.90 and 1,282.60 is: 1,923.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307.08 : 1,959.90 = 1,282.60 : x
  2. Step 2: Convert to fraction form
    1,307.08/1,959.90 = 1,282.60/x
  3. Step 3: Cross multiply
    1,307.08x = 1,959.90 × 1,282.60
  4. Step 4: Simplify right side
    1,307.08x = 2,513,767.74
  5. Step 5: Solve for x
    x = 2,513,767.74/1,307.08
  6. Step 6: Final answer
    x = 1,923.19

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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.