Home / 3,120.95-4,307.01-1,794.98

Finding the Fourth Proportional to 3,120.95, 4,307.01 and 1,794.98

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Solution

The fourth proportional to 3,120.95, 4,307.01 and 1,794.98 is: 2,477.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.95 : 4,307.01 = 1,794.98 : x
  2. Step 2: Convert to fraction form
    3,120.95/4,307.01 = 1,794.98/x
  3. Step 3: Cross multiply
    3,120.95x = 4,307.01 × 1,794.98
  4. Step 4: Simplify right side
    3,120.95x = 7,730,996.81
  5. Step 5: Solve for x
    x = 7,730,996.81/3,120.95
  6. Step 6: Final answer
    x = 2,477.13

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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.