Home / 1,318.26-1,975.05-624.18

Finding the Fourth Proportional to 1,318.26, 1,975.05 and 624.18

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Solution

The fourth proportional to 1,318.26, 1,975.05 and 624.18 is: 935.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318.26 : 1,975.05 = 624.18 : x
  2. Step 2: Convert to fraction form
    1,318.26/1,975.05 = 624.18/x
  3. Step 3: Cross multiply
    1,318.26x = 1,975.05 × 624.18
  4. Step 4: Simplify right side
    1,318.26x = 1,232,786.71
  5. Step 5: Solve for x
    x = 1,232,786.71/1,318.26
  6. Step 6: Final answer
    x = 935.16

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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.