Home / 1,283.46-1,769.58-1,071.08

Finding the Fourth Proportional to 1,283.46, 1,769.58 and 1,071.08

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Solution

The fourth proportional to 1,283.46, 1,769.58 and 1,071.08 is: 1,476.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283.46 : 1,769.58 = 1,071.08 : x
  2. Step 2: Convert to fraction form
    1,283.46/1,769.58 = 1,071.08/x
  3. Step 3: Cross multiply
    1,283.46x = 1,769.58 × 1,071.08
  4. Step 4: Simplify right side
    1,283.46x = 1,895,360.81
  5. Step 5: Solve for x
    x = 1,895,360.81/1,283.46
  6. Step 6: Final answer
    x = 1,476.75

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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.