Home / 1,548.40-2,316.12-1,238.98

Finding the Fourth Proportional to 1,548.40, 2,316.12 and 1,238.98

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Solution

The fourth proportional to 1,548.40, 2,316.12 and 1,238.98 is: 1,853.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.40 : 2,316.12 = 1,238.98 : x
  2. Step 2: Convert to fraction form
    1,548.40/2,316.12 = 1,238.98/x
  3. Step 3: Cross multiply
    1,548.40x = 2,316.12 × 1,238.98
  4. Step 4: Simplify right side
    1,548.40x = 2,869,626.36
  5. Step 5: Solve for x
    x = 2,869,626.36/1,548.40
  6. Step 6: Final answer
    x = 1,853.28

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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.