Home / 2,318.16-3,197.40-1,478.00

Finding the Fourth Proportional to 2,318.16, 3,197.40 and 1,478.00

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Solution

The fourth proportional to 2,318.16, 3,197.40 and 1,478.00 is: 2,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.16 : 3,197.40 = 1,478.00 : x
  2. Step 2: Convert to fraction form
    2,318.16/3,197.40 = 1,478.00/x
  3. Step 3: Cross multiply
    2,318.16x = 3,197.40 × 1,478.00
  4. Step 4: Simplify right side
    2,318.16x = 4,725,741.21
  5. Step 5: Solve for x
    x = 4,725,741.21/2,318.16
  6. Step 6: Final answer
    x = 2,038.57

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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.