Home / 1,532.67-2,115.09-943.08

Finding the Fourth Proportional to 1,532.67, 2,115.09 and 943.08

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Solution

The fourth proportional to 1,532.67, 2,115.09 and 943.08 is: 1,301.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532.67 : 2,115.09 = 943.08 : x
  2. Step 2: Convert to fraction form
    1,532.67/2,115.09 = 943.08/x
  3. Step 3: Cross multiply
    1,532.67x = 2,115.09 × 943.08
  4. Step 4: Simplify right side
    1,532.67x = 1,994,699.08
  5. Step 5: Solve for x
    x = 1,994,699.08/1,532.67
  6. Step 6: Final answer
    x = 1,301.45

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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.