Home / 1,552.25-2,142.15-853.67

Finding the Fourth Proportional to 1,552.25, 2,142.15 and 853.67

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Solution

The fourth proportional to 1,552.25, 2,142.15 and 853.67 is: 1,178.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.25 : 2,142.15 = 853.67 : x
  2. Step 2: Convert to fraction form
    1,552.25/2,142.15 = 853.67/x
  3. Step 3: Cross multiply
    1,552.25x = 2,142.15 × 853.67
  4. Step 4: Simplify right side
    1,552.25x = 1,828,689.19
  5. Step 5: Solve for x
    x = 1,828,689.19/1,552.25
  6. Step 6: Final answer
    x = 1,178.09

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Double scale
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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.