Home / 2,140.08-2,952.21-1,395.28

Finding the Fourth Proportional to 2,140.08, 2,952.21 and 1,395.28

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Solution

The fourth proportional to 2,140.08, 2,952.21 and 1,395.28 is: 1,924.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.08 : 2,952.21 = 1,395.28 : x
  2. Step 2: Convert to fraction form
    2,140.08/2,952.21 = 1,395.28/x
  3. Step 3: Cross multiply
    2,140.08x = 2,952.21 × 1,395.28
  4. Step 4: Simplify right side
    2,140.08x = 4,119,159.57
  5. Step 5: Solve for x
    x = 4,119,159.57/2,140.08
  6. Step 6: Final answer
    x = 1,924.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.