Home / 2,405.40-3,320.79-1,510.08

Finding the Fourth Proportional to 2,405.40, 3,320.79 and 1,510.08

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Solution

The fourth proportional to 2,405.40, 3,320.79 and 1,510.08 is: 2,084.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.40 : 3,320.79 = 1,510.08 : x
  2. Step 2: Convert to fraction form
    2,405.40/3,320.79 = 1,510.08/x
  3. Step 3: Cross multiply
    2,405.40x = 3,320.79 × 1,510.08
  4. Step 4: Simplify right side
    2,405.40x = 5,014,644.69
  5. Step 5: Solve for x
    x = 5,014,644.69/2,405.40
  6. Step 6: Final answer
    x = 2,084.74

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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.