Home / 1,526.40-2,105.34-1,292.51

Finding the Fourth Proportional to 1,526.40, 2,105.34 and 1,292.51

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Solution

The fourth proportional to 1,526.40, 2,105.34 and 1,292.51 is: 1,782.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.40 : 2,105.34 = 1,292.51 : x
  2. Step 2: Convert to fraction form
    1,526.40/2,105.34 = 1,292.51/x
  3. Step 3: Cross multiply
    1,526.40x = 2,105.34 × 1,292.51
  4. Step 4: Simplify right side
    1,526.40x = 2,721,173.00
  5. Step 5: Solve for x
    x = 2,721,173.00/1,526.40
  6. Step 6: Final answer
    x = 1,782.74

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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.