Home / 5,135.95-7,087.70-3,013.00

Finding the Fourth Proportional to 5,135.95, 7,087.70 and 3,013.00

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Solution

The fourth proportional to 5,135.95, 7,087.70 and 3,013.00 is: 4,158.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.95 : 7,087.70 = 3,013.00 : x
  2. Step 2: Convert to fraction form
    5,135.95/7,087.70 = 3,013.00/x
  3. Step 3: Cross multiply
    5,135.95x = 7,087.70 × 3,013.00
  4. Step 4: Simplify right side
    5,135.95x = 21,355,259.81
  5. Step 5: Solve for x
    x = 21,355,259.81/5,135.95
  6. Step 6: Final answer
    x = 4,158.00

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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.