Home / 1,557.02-2,145.44-1,058.79

Finding the Fourth Proportional to 1,557.02, 2,145.44 and 1,058.79

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Solution

The fourth proportional to 1,557.02, 2,145.44 and 1,058.79 is: 1,458.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.02 : 2,145.44 = 1,058.79 : x
  2. Step 2: Convert to fraction form
    1,557.02/2,145.44 = 1,058.79/x
  3. Step 3: Cross multiply
    1,557.02x = 2,145.44 × 1,058.79
  4. Step 4: Simplify right side
    1,557.02x = 2,271,565.12
  5. Step 5: Solve for x
    x = 2,271,565.12/1,557.02
  6. Step 6: Final answer
    x = 1,458.92

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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.