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Finding the Fourth Proportional to 1,782.56, 2,459.80 and 1,036.52

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Solution

The fourth proportional to 1,782.56, 2,459.80 and 1,036.52 is: 1,430.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782.56 : 2,459.80 = 1,036.52 : x
  2. Step 2: Convert to fraction form
    1,782.56/2,459.80 = 1,036.52/x
  3. Step 3: Cross multiply
    1,782.56x = 2,459.80 × 1,036.52
  4. Step 4: Simplify right side
    1,782.56x = 2,549,631.90
  5. Step 5: Solve for x
    x = 2,549,631.90/1,782.56
  6. Step 6: Final answer
    x = 1,430.32

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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.