Home / 1,642.08-2,265.48-1,012.32

Finding the Fourth Proportional to 1,642.08, 2,265.48 and 1,012.32

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Solution

The fourth proportional to 1,642.08, 2,265.48 and 1,012.32 is: 1,396.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642.08 : 2,265.48 = 1,012.32 : x
  2. Step 2: Convert to fraction form
    1,642.08/2,265.48 = 1,012.32/x
  3. Step 3: Cross multiply
    1,642.08x = 2,265.48 × 1,012.32
  4. Step 4: Simplify right side
    1,642.08x = 2,293,390.71
  5. Step 5: Solve for x
    x = 2,293,390.71/1,642.08
  6. Step 6: Final answer
    x = 1,396.64

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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.