Home / 1,782.40-2,459.64-1,036.38

Finding the Fourth Proportional to 1,782.40, 2,459.64 and 1,036.38

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Solution

The fourth proportional to 1,782.40, 2,459.64 and 1,036.38 is: 1,430.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782.40 : 2,459.64 = 1,036.38 : x
  2. Step 2: Convert to fraction form
    1,782.40/2,459.64 = 1,036.38/x
  3. Step 3: Cross multiply
    1,782.40x = 2,459.64 × 1,036.38
  4. Step 4: Simplify right side
    1,782.40x = 2,549,121.70
  5. Step 5: Solve for x
    x = 2,549,121.70/1,782.40
  6. Step 6: Final answer
    x = 1,430.16

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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.