Home / 2,471.58-3,408.84-1,587.45

Finding the Fourth Proportional to 2,471.58, 3,408.84 and 1,587.45

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Solution

The fourth proportional to 2,471.58, 3,408.84 and 1,587.45 is: 2,189.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,471.58 : 3,408.84 = 1,587.45 : x
  2. Step 2: Convert to fraction form
    2,471.58/3,408.84 = 1,587.45/x
  3. Step 3: Cross multiply
    2,471.58x = 3,408.84 × 1,587.45
  4. Step 4: Simplify right side
    2,471.58x = 5,411,363.06
  5. Step 5: Solve for x
    x = 5,411,363.06/2,471.58
  6. Step 6: Final answer
    x = 2,189.43

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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.