Home / 1,326.02-1,830.06-766.36

Finding the Fourth Proportional to 1,326.02, 1,830.06 and 766.36

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Solution

The fourth proportional to 1,326.02, 1,830.06 and 766.36 is: 1,057.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326.02 : 1,830.06 = 766.36 : x
  2. Step 2: Convert to fraction form
    1,326.02/1,830.06 = 766.36/x
  3. Step 3: Cross multiply
    1,326.02x = 1,830.06 × 766.36
  4. Step 4: Simplify right side
    1,326.02x = 1,402,484.78
  5. Step 5: Solve for x
    x = 1,402,484.78/1,326.02
  6. Step 6: Final answer
    x = 1,057.66

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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.