Home / 1,572.15-2,355.03-1,262.34

Finding the Fourth Proportional to 1,572.15, 2,355.03 and 1,262.34

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Solution

The fourth proportional to 1,572.15, 2,355.03 and 1,262.34 is: 1,890.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572.15 : 2,355.03 = 1,262.34 : x
  2. Step 2: Convert to fraction form
    1,572.15/2,355.03 = 1,262.34/x
  3. Step 3: Cross multiply
    1,572.15x = 2,355.03 × 1,262.34
  4. Step 4: Simplify right side
    1,572.15x = 2,972,848.57
  5. Step 5: Solve for x
    x = 2,972,848.57/1,572.15
  6. Step 6: Final answer
    x = 1,890.94

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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.