Home / 1,988.77-2,983.55-602.18

Finding the Fourth Proportional to 1,988.77, 2,983.55 and 602.18

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Solution

The fourth proportional to 1,988.77, 2,983.55 and 602.18 is: 903.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.77 : 2,983.55 = 602.18 : x
  2. Step 2: Convert to fraction form
    1,988.77/2,983.55 = 602.18/x
  3. Step 3: Cross multiply
    1,988.77x = 2,983.55 × 602.18
  4. Step 4: Simplify right side
    1,988.77x = 1,796,634.14
  5. Step 5: Solve for x
    x = 1,796,634.14/1,988.77
  6. Step 6: Final answer
    x = 903.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.