Home / 2,001.61-2,762.36-1,117.55

Finding the Fourth Proportional to 2,001.61, 2,762.36 and 1,117.55

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Solution

The fourth proportional to 2,001.61, 2,762.36 and 1,117.55 is: 1,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.61 : 2,762.36 = 1,117.55 : x
  2. Step 2: Convert to fraction form
    2,001.61/2,762.36 = 1,117.55/x
  3. Step 3: Cross multiply
    2,001.61x = 2,762.36 × 1,117.55
  4. Step 4: Simplify right side
    2,001.61x = 3,087,075.42
  5. Step 5: Solve for x
    x = 3,087,075.42/2,001.61
  6. Step 6: Final answer
    x = 1,542.30

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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.