Home / 1,870.17-2,805.75-1,666.14

Finding the Fourth Proportional to 1,870.17, 2,805.75 and 1,666.14

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Solution

The fourth proportional to 1,870.17, 2,805.75 and 1,666.14 is: 2,499.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870.17 : 2,805.75 = 1,666.14 : x
  2. Step 2: Convert to fraction form
    1,870.17/2,805.75 = 1,666.14/x
  3. Step 3: Cross multiply
    1,870.17x = 2,805.75 × 1,666.14
  4. Step 4: Simplify right side
    1,870.17x = 4,674,772.31
  5. Step 5: Solve for x
    x = 4,674,772.31/1,870.17
  6. Step 6: Final answer
    x = 2,499.65

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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.