Home / 3,038.60-4,192.98-1,712

Finding the Fourth Proportional to 3,038.60, 4,192.98 and 1,712

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Solution

The fourth proportional to 3,038.60, 4,192.98 and 1,712 is: 2,362.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.60 : 4,192.98 = 1,712 : x
  2. Step 2: Convert to fraction form
    3,038.60/4,192.98 = 1,712/x
  3. Step 3: Cross multiply
    3,038.60x = 4,192.98 × 1,712
  4. Step 4: Simplify right side
    3,038.60x = 7,178,381.76
  5. Step 5: Solve for x
    x = 7,178,381.76/3,038.60
  6. Step 6: Final answer
    x = 2,362.40

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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.