Home / 3,718.17-5,130.93-2,225.31

Finding the Fourth Proportional to 3,718.17, 5,130.93 and 2,225.31

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Solution

The fourth proportional to 3,718.17, 5,130.93 and 2,225.31 is: 3,070.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.17 : 5,130.93 = 2,225.31 : x
  2. Step 2: Convert to fraction form
    3,718.17/5,130.93 = 2,225.31/x
  3. Step 3: Cross multiply
    3,718.17x = 5,130.93 × 2,225.31
  4. Step 4: Simplify right side
    3,718.17x = 11,417,909.84
  5. Step 5: Solve for x
    x = 11,417,909.84/3,718.17
  6. Step 6: Final answer
    x = 3,070.84

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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.