Home / 1,548.01-2,135.24-918.07

Finding the Fourth Proportional to 1,548.01, 2,135.24 and 918.07

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Solution

The fourth proportional to 1,548.01, 2,135.24 and 918.07 is: 1,266.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.01 : 2,135.24 = 918.07 : x
  2. Step 2: Convert to fraction form
    1,548.01/2,135.24 = 918.07/x
  3. Step 3: Cross multiply
    1,548.01x = 2,135.24 × 918.07
  4. Step 4: Simplify right side
    1,548.01x = 1,960,298.47
  5. Step 5: Solve for x
    x = 1,960,298.47/1,548.01
  6. Step 6: Final answer
    x = 1,266.33

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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.