Home / 1,143.04-1,570.56-1,092.16

Finding the Fourth Proportional to 1,143.04, 1,570.56 and 1,092.16

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Solution

The fourth proportional to 1,143.04, 1,570.56 and 1,092.16 is: 1,500.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143.04 : 1,570.56 = 1,092.16 : x
  2. Step 2: Convert to fraction form
    1,143.04/1,570.56 = 1,092.16/x
  3. Step 3: Cross multiply
    1,143.04x = 1,570.56 × 1,092.16
  4. Step 4: Simplify right side
    1,143.04x = 1,715,302.81
  5. Step 5: Solve for x
    x = 1,715,302.81/1,143.04
  6. Step 6: Final answer
    x = 1,500.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.