Home / 1,533.13-2,114.40-972.97

Finding the Fourth Proportional to 1,533.13, 2,114.40 and 972.97

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Solution

The fourth proportional to 1,533.13, 2,114.40 and 972.97 is: 1,341.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.13 : 2,114.40 = 972.97 : x
  2. Step 2: Convert to fraction form
    1,533.13/2,114.40 = 972.97/x
  3. Step 3: Cross multiply
    1,533.13x = 2,114.40 × 972.97
  4. Step 4: Simplify right side
    1,533.13x = 2,057,247.77
  5. Step 5: Solve for x
    x = 2,057,247.77/1,533.13
  6. Step 6: Final answer
    x = 1,341.86

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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.