Home / 3,038.39-4,192.80-1,712.16

Finding the Fourth Proportional to 3,038.39, 4,192.80 and 1,712.16

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Solution

The fourth proportional to 3,038.39, 4,192.80 and 1,712.16 is: 2,362.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.39 : 4,192.80 = 1,712.16 : x
  2. Step 2: Convert to fraction form
    3,038.39/4,192.80 = 1,712.16/x
  3. Step 3: Cross multiply
    3,038.39x = 4,192.80 × 1,712.16
  4. Step 4: Simplify right side
    3,038.39x = 7,178,744.45
  5. Step 5: Solve for x
    x = 7,178,744.45/3,038.39
  6. Step 6: Final answer
    x = 2,362.68

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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.