Home / 2,101.84-3,154.62-1,870.36

Finding the Fourth Proportional to 2,101.84, 3,154.62 and 1,870.36

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Solution

The fourth proportional to 2,101.84, 3,154.62 and 1,870.36 is: 2,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.84 : 3,154.62 = 1,870.36 : x
  2. Step 2: Convert to fraction form
    2,101.84/3,154.62 = 1,870.36/x
  3. Step 3: Cross multiply
    2,101.84x = 3,154.62 × 1,870.36
  4. Step 4: Simplify right side
    2,101.84x = 5,900,275.06
  5. Step 5: Solve for x
    x = 5,900,275.06/2,101.84
  6. Step 6: Final answer
    x = 2,807.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.