Home / 1,533.49-2,301.39-1,123.70

Finding the Fourth Proportional to 1,533.49, 2,301.39 and 1,123.70

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Solution

The fourth proportional to 1,533.49, 2,301.39 and 1,123.70 is: 1,686.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.49 : 2,301.39 = 1,123.70 : x
  2. Step 2: Convert to fraction form
    1,533.49/2,301.39 = 1,123.70/x
  3. Step 3: Cross multiply
    1,533.49x = 2,301.39 × 1,123.70
  4. Step 4: Simplify right side
    1,533.49x = 2,586,060.44
  5. Step 5: Solve for x
    x = 2,586,060.44/1,533.49
  6. Step 6: Final answer
    x = 1,686.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.