Home / 1,552.02-2,141.70-853.40

Finding the Fourth Proportional to 1,552.02, 2,141.70 and 853.40

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Solution

The fourth proportional to 1,552.02, 2,141.70 and 853.40 is: 1,177.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.02 : 2,141.70 = 853.40 : x
  2. Step 2: Convert to fraction form
    1,552.02/2,141.70 = 853.40/x
  3. Step 3: Cross multiply
    1,552.02x = 2,141.70 × 853.40
  4. Step 4: Simplify right side
    1,552.02x = 1,827,726.78
  5. Step 5: Solve for x
    x = 1,827,726.78/1,552.02
  6. Step 6: Final answer
    x = 1,177.64

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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.