Home / 3,117.61-4,301.26-1,790.36

Finding the Fourth Proportional to 3,117.61, 4,301.26 and 1,790.36

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Solution

The fourth proportional to 3,117.61, 4,301.26 and 1,790.36 is: 2,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.61 : 4,301.26 = 1,790.36 : x
  2. Step 2: Convert to fraction form
    3,117.61/4,301.26 = 1,790.36/x
  3. Step 3: Cross multiply
    3,117.61x = 4,301.26 × 1,790.36
  4. Step 4: Simplify right side
    3,117.61x = 7,700,803.85
  5. Step 5: Solve for x
    x = 7,700,803.85/3,117.61
  6. Step 6: Final answer
    x = 2,470.10

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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.