Home / 1,969.74-2,931.36-1,904.12

Finding the Fourth Proportional to 1,969.74, 2,931.36 and 1,904.12

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Solution

The fourth proportional to 1,969.74, 2,931.36 and 1,904.12 is: 2,833.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.74 : 2,931.36 = 1,904.12 : x
  2. Step 2: Convert to fraction form
    1,969.74/2,931.36 = 1,904.12/x
  3. Step 3: Cross multiply
    1,969.74x = 2,931.36 × 1,904.12
  4. Step 4: Simplify right side
    1,969.74x = 5,581,661.20
  5. Step 5: Solve for x
    x = 5,581,661.20/1,969.74
  6. Step 6: Final answer
    x = 2,833.70

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.