Home / 5,298.95-7,312.30-2,908.87

Finding the Fourth Proportional to 5,298.95, 7,312.30 and 2,908.87

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Solution

The fourth proportional to 5,298.95, 7,312.30 and 2,908.87 is: 4,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,298.95 : 7,312.30 = 2,908.87 : x
  2. Step 2: Convert to fraction form
    5,298.95/7,312.30 = 2,908.87/x
  3. Step 3: Cross multiply
    5,298.95x = 7,312.30 × 2,908.87
  4. Step 4: Simplify right side
    5,298.95x = 21,270,504.55
  5. Step 5: Solve for x
    x = 21,270,504.55/5,298.95
  6. Step 6: Final answer
    x = 4,014.10

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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.