Home / 1,931.29-2,665.02-1,091.95

Finding the Fourth Proportional to 1,931.29, 2,665.02 and 1,091.95

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Solution

The fourth proportional to 1,931.29, 2,665.02 and 1,091.95 is: 1,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.29 : 2,665.02 = 1,091.95 : x
  2. Step 2: Convert to fraction form
    1,931.29/2,665.02 = 1,091.95/x
  3. Step 3: Cross multiply
    1,931.29x = 2,665.02 × 1,091.95
  4. Step 4: Simplify right side
    1,931.29x = 2,910,068.59
  5. Step 5: Solve for x
    x = 2,910,068.59/1,931.29
  6. Step 6: Final answer
    x = 1,506.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.