Home / 1,539.72-2,127.06-1,332.36

Finding the Fourth Proportional to 1,539.72, 2,127.06 and 1,332.36

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Solution

The fourth proportional to 1,539.72, 2,127.06 and 1,332.36 is: 1,840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.72 : 2,127.06 = 1,332.36 : x
  2. Step 2: Convert to fraction form
    1,539.72/2,127.06 = 1,332.36/x
  3. Step 3: Cross multiply
    1,539.72x = 2,127.06 × 1,332.36
  4. Step 4: Simplify right side
    1,539.72x = 2,834,009.66
  5. Step 5: Solve for x
    x = 2,834,009.66/1,539.72
  6. Step 6: Final answer
    x = 1,840.60

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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.