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Finding the Fourth Proportional to 3,393.15, 5,088.93 and 1,913.01

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Solution

The fourth proportional to 3,393.15, 5,088.93 and 1,913.01 is: 2,869.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.15 : 5,088.93 = 1,913.01 : x
  2. Step 2: Convert to fraction form
    3,393.15/5,088.93 = 1,913.01/x
  3. Step 3: Cross multiply
    3,393.15x = 5,088.93 × 1,913.01
  4. Step 4: Simplify right side
    3,393.15x = 9,735,173.98
  5. Step 5: Solve for x
    x = 9,735,173.98/3,393.15
  6. Step 6: Final answer
    x = 2,869.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.