Home / 2,275.07-3,139.31-1,435.45

Finding the Fourth Proportional to 2,275.07, 3,139.31 and 1,435.45

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Solution

The fourth proportional to 2,275.07, 3,139.31 and 1,435.45 is: 1,980.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.07 : 3,139.31 = 1,435.45 : x
  2. Step 2: Convert to fraction form
    2,275.07/3,139.31 = 1,435.45/x
  3. Step 3: Cross multiply
    2,275.07x = 3,139.31 × 1,435.45
  4. Step 4: Simplify right side
    2,275.07x = 4,506,322.54
  5. Step 5: Solve for x
    x = 4,506,322.54/2,275.07
  6. Step 6: Final answer
    x = 1,980.74

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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.