Home / 1,875.90-2,589.85-1,668.30

Finding the Fourth Proportional to 1,875.90, 2,589.85 and 1,668.30

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Solution

The fourth proportional to 1,875.90, 2,589.85 and 1,668.30 is: 2,303.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.90 : 2,589.85 = 1,668.30 : x
  2. Step 2: Convert to fraction form
    1,875.90/2,589.85 = 1,668.30/x
  3. Step 3: Cross multiply
    1,875.90x = 2,589.85 × 1,668.30
  4. Step 4: Simplify right side
    1,875.90x = 4,320,646.76
  5. Step 5: Solve for x
    x = 4,320,646.76/1,875.90
  6. Step 6: Final answer
    x = 2,303.24

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1.5x scale

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.