Home / 1,875.20-2,585.66-1,762.20

Finding the Fourth Proportional to 1,875.20, 2,585.66 and 1,762.20

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Solution

The fourth proportional to 1,875.20, 2,585.66 and 1,762.20 is: 2,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.20 : 2,585.66 = 1,762.20 : x
  2. Step 2: Convert to fraction form
    1,875.20/2,585.66 = 1,762.20/x
  3. Step 3: Cross multiply
    1,875.20x = 2,585.66 × 1,762.20
  4. Step 4: Simplify right side
    1,875.20x = 4,556,441.24
  5. Step 5: Solve for x
    x = 4,556,441.24/1,875.20
  6. Step 6: Final answer
    x = 2,429.85

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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.