Home / 1,316.10-1,974.83-585.50

Finding the Fourth Proportional to 1,316.10, 1,974.83 and 585.50

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Solution

The fourth proportional to 1,316.10, 1,974.83 and 585.50 is: 878.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.10 : 1,974.83 = 585.50 : x
  2. Step 2: Convert to fraction form
    1,316.10/1,974.83 = 585.50/x
  3. Step 3: Cross multiply
    1,316.10x = 1,974.83 × 585.50
  4. Step 4: Simplify right side
    1,316.10x = 1,156,270.12
  5. Step 5: Solve for x
    x = 1,156,270.12/1,316.10
  6. Step 6: Final answer
    x = 878.56

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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.