Home / 1,548.51-2,138.85-1,157.28

Finding the Fourth Proportional to 1,548.51, 2,138.85 and 1,157.28

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Solution

The fourth proportional to 1,548.51, 2,138.85 and 1,157.28 is: 1,598.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.51 : 2,138.85 = 1,157.28 : x
  2. Step 2: Convert to fraction form
    1,548.51/2,138.85 = 1,157.28/x
  3. Step 3: Cross multiply
    1,548.51x = 2,138.85 × 1,157.28
  4. Step 4: Simplify right side
    1,548.51x = 2,475,248.33
  5. Step 5: Solve for x
    x = 2,475,248.33/1,548.51
  6. Step 6: Final answer
    x = 1,598.47

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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.