Home / 2,869.19-4,303.78-922.76

Finding the Fourth Proportional to 2,869.19, 4,303.78 and 922.76

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Solution

The fourth proportional to 2,869.19, 4,303.78 and 922.76 is: 1,384.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.19 : 4,303.78 = 922.76 : x
  2. Step 2: Convert to fraction form
    2,869.19/4,303.78 = 922.76/x
  3. Step 3: Cross multiply
    2,869.19x = 4,303.78 × 922.76
  4. Step 4: Simplify right side
    2,869.19x = 3,971,332.21
  5. Step 5: Solve for x
    x = 3,971,332.21/2,869.19
  6. Step 6: Final answer
    x = 1,384.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.