Home / 1,558.08-2,335.50-972.18

Finding the Fourth Proportional to 1,558.08, 2,335.50 and 972.18

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Solution

The fourth proportional to 1,558.08, 2,335.50 and 972.18 is: 1,457.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.08 : 2,335.50 = 972.18 : x
  2. Step 2: Convert to fraction form
    1,558.08/2,335.50 = 972.18/x
  3. Step 3: Cross multiply
    1,558.08x = 2,335.50 × 972.18
  4. Step 4: Simplify right side
    1,558.08x = 2,270,526.39
  5. Step 5: Solve for x
    x = 2,270,526.39/1,558.08
  6. Step 6: Final answer
    x = 1,457.26

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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.