Home / 2,519.90-3,477.52-1,400.80

Finding the Fourth Proportional to 2,519.90, 3,477.52 and 1,400.80

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Solution

The fourth proportional to 2,519.90, 3,477.52 and 1,400.80 is: 1,933.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.90 : 3,477.52 = 1,400.80 : x
  2. Step 2: Convert to fraction form
    2,519.90/3,477.52 = 1,400.80/x
  3. Step 3: Cross multiply
    2,519.90x = 3,477.52 × 1,400.80
  4. Step 4: Simplify right side
    2,519.90x = 4,871,292.63
  5. Step 5: Solve for x
    x = 4,871,292.63/2,519.90
  6. Step 6: Final answer
    x = 1,933.13

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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.