Home / 1,487.36-2,052.34-824.12

Finding the Fourth Proportional to 1,487.36, 2,052.34 and 824.12

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Solution

The fourth proportional to 1,487.36, 2,052.34 and 824.12 is: 1,137.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.36 : 2,052.34 = 824.12 : x
  2. Step 2: Convert to fraction form
    1,487.36/2,052.34 = 824.12/x
  3. Step 3: Cross multiply
    1,487.36x = 2,052.34 × 824.12
  4. Step 4: Simplify right side
    1,487.36x = 1,691,381.36
  5. Step 5: Solve for x
    x = 1,691,381.36/1,487.36
  6. Step 6: Final answer
    x = 1,137.17

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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.