Home / 3,869.13-5,339.22-2,376.51

Finding the Fourth Proportional to 3,869.13, 5,339.22 and 2,376.51

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Solution

The fourth proportional to 3,869.13, 5,339.22 and 2,376.51 is: 3,279.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.13 : 5,339.22 = 2,376.51 : x
  2. Step 2: Convert to fraction form
    3,869.13/5,339.22 = 2,376.51/x
  3. Step 3: Cross multiply
    3,869.13x = 5,339.22 × 2,376.51
  4. Step 4: Simplify right side
    3,869.13x = 12,688,680.79
  5. Step 5: Solve for x
    x = 12,688,680.79/3,869.13
  6. Step 6: Final answer
    x = 3,279.46

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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.