Home / 3,312.36-4,569.30-1,985.22

Finding the Fourth Proportional to 3,312.36, 4,569.30 and 1,985.22

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Solution

The fourth proportional to 3,312.36, 4,569.30 and 1,985.22 is: 2,738.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.36 : 4,569.30 = 1,985.22 : x
  2. Step 2: Convert to fraction form
    3,312.36/4,569.30 = 1,985.22/x
  3. Step 3: Cross multiply
    3,312.36x = 4,569.30 × 1,985.22
  4. Step 4: Simplify right side
    3,312.36x = 9,071,065.75
  5. Step 5: Solve for x
    x = 9,071,065.75/3,312.36
  6. Step 6: Final answer
    x = 2,738.55

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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.