Home / 4,148.36-5,718.70-3,151.91

Finding the Fourth Proportional to 4,148.36, 5,718.70 and 3,151.91

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Solution

The fourth proportional to 4,148.36, 5,718.70 and 3,151.91 is: 4,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,148.36 : 5,718.70 = 3,151.91 : x
  2. Step 2: Convert to fraction form
    4,148.36/5,718.70 = 3,151.91/x
  3. Step 3: Cross multiply
    4,148.36x = 5,718.70 × 3,151.91
  4. Step 4: Simplify right side
    4,148.36x = 18,024,834.13
  5. Step 5: Solve for x
    x = 18,024,834.13/4,148.36
  6. Step 6: Final answer
    x = 4,345.05

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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.