Home / 2,531.04-3,490.85-1,647.12

Finding the Fourth Proportional to 2,531.04, 3,490.85 and 1,647.12

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Solution

The fourth proportional to 2,531.04, 3,490.85 and 1,647.12 is: 2,271.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.04 : 3,490.85 = 1,647.12 : x
  2. Step 2: Convert to fraction form
    2,531.04/3,490.85 = 1,647.12/x
  3. Step 3: Cross multiply
    2,531.04x = 3,490.85 × 1,647.12
  4. Step 4: Simplify right side
    2,531.04x = 5,749,848.85
  5. Step 5: Solve for x
    x = 5,749,848.85/2,531.04
  6. Step 6: Final answer
    x = 2,271.73

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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.