Home / 3,140.61-4,334.13-1,881.24

Finding the Fourth Proportional to 3,140.61, 4,334.13 and 1,881.24

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Solution

The fourth proportional to 3,140.61, 4,334.13 and 1,881.24 is: 2,596.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.61 : 4,334.13 = 1,881.24 : x
  2. Step 2: Convert to fraction form
    3,140.61/4,334.13 = 1,881.24/x
  3. Step 3: Cross multiply
    3,140.61x = 4,334.13 × 1,881.24
  4. Step 4: Simplify right side
    3,140.61x = 8,153,538.72
  5. Step 5: Solve for x
    x = 8,153,538.72/3,140.61
  6. Step 6: Final answer
    x = 2,596.16

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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.