Home / 1,283.04-1,767.47-1,116.96

Finding the Fourth Proportional to 1,283.04, 1,767.47 and 1,116.96

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Solution

The fourth proportional to 1,283.04, 1,767.47 and 1,116.96 is: 1,538.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283.04 : 1,767.47 = 1,116.96 : x
  2. Step 2: Convert to fraction form
    1,283.04/1,767.47 = 1,116.96/x
  3. Step 3: Cross multiply
    1,283.04x = 1,767.47 × 1,116.96
  4. Step 4: Simplify right side
    1,283.04x = 1,974,187.71
  5. Step 5: Solve for x
    x = 1,974,187.71/1,283.04
  6. Step 6: Final answer
    x = 1,538.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.