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Finding the Fourth Proportional to 1,298.83, 1,947.66 and 374.18

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Solution

The fourth proportional to 1,298.83, 1,947.66 and 374.18 is: 561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298.83 : 1,947.66 = 374.18 : x
  2. Step 2: Convert to fraction form
    1,298.83/1,947.66 = 374.18/x
  3. Step 3: Cross multiply
    1,298.83x = 1,947.66 × 374.18
  4. Step 4: Simplify right side
    1,298.83x = 728,775.42
  5. Step 5: Solve for x
    x = 728,775.42/1,298.83
  6. Step 6: Final answer
    x = 561.10

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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.