Home / 1,246.15-1,870.38-630.29

Finding the Fourth Proportional to 1,246.15, 1,870.38 and 630.29

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Solution

The fourth proportional to 1,246.15, 1,870.38 and 630.29 is: 946.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.15 : 1,870.38 = 630.29 : x
  2. Step 2: Convert to fraction form
    1,246.15/1,870.38 = 630.29/x
  3. Step 3: Cross multiply
    1,246.15x = 1,870.38 × 630.29
  4. Step 4: Simplify right side
    1,246.15x = 1,178,869.31
  5. Step 5: Solve for x
    x = 1,178,869.31/1,246.15
  6. Step 6: Final answer
    x = 946.01

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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.