Home / 3,390.04-4,675.84-3,111.17

Finding the Fourth Proportional to 3,390.04, 4,675.84 and 3,111.17

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Solution

The fourth proportional to 3,390.04, 4,675.84 and 3,111.17 is: 4,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.04 : 4,675.84 = 3,111.17 : x
  2. Step 2: Convert to fraction form
    3,390.04/4,675.84 = 3,111.17/x
  3. Step 3: Cross multiply
    3,390.04x = 4,675.84 × 3,111.17
  4. Step 4: Simplify right side
    3,390.04x = 14,547,317.58
  5. Step 5: Solve for x
    x = 14,547,317.58/3,390.04
  6. Step 6: Final answer
    x = 4,291.20

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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.