Home / 1,348.42-1,858.95-1,048.73

Finding the Fourth Proportional to 1,348.42, 1,858.95 and 1,048.73

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Solution

The fourth proportional to 1,348.42, 1,858.95 and 1,048.73 is: 1,445.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.42 : 1,858.95 = 1,048.73 : x
  2. Step 2: Convert to fraction form
    1,348.42/1,858.95 = 1,048.73/x
  3. Step 3: Cross multiply
    1,348.42x = 1,858.95 × 1,048.73
  4. Step 4: Simplify right side
    1,348.42x = 1,949,545.64
  5. Step 5: Solve for x
    x = 1,949,545.64/1,348.42
  6. Step 6: Final answer
    x = 1,445.80

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1.5x scale

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.