Home / 1,553.48-2,143.45-1,134.07

Finding the Fourth Proportional to 1,553.48, 2,143.45 and 1,134.07

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Solution

The fourth proportional to 1,553.48, 2,143.45 and 1,134.07 is: 1,564.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.48 : 2,143.45 = 1,134.07 : x
  2. Step 2: Convert to fraction form
    1,553.48/2,143.45 = 1,134.07/x
  3. Step 3: Cross multiply
    1,553.48x = 2,143.45 × 1,134.07
  4. Step 4: Simplify right side
    1,553.48x = 2,430,822.34
  5. Step 5: Solve for x
    x = 2,430,822.34/1,553.48
  6. Step 6: Final answer
    x = 1,564.76

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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.