Home / 4,990.51-6,889.40-3,868.93

Finding the Fourth Proportional to 4,990.51, 6,889.40 and 3,868.93

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Solution

The fourth proportional to 4,990.51, 6,889.40 and 3,868.93 is: 5,341.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.51 : 6,889.40 = 3,868.93 : x
  2. Step 2: Convert to fraction form
    4,990.51/6,889.40 = 3,868.93/x
  3. Step 3: Cross multiply
    4,990.51x = 6,889.40 × 3,868.93
  4. Step 4: Simplify right side
    4,990.51x = 26,654,606.34
  5. Step 5: Solve for x
    x = 26,654,606.34/4,990.51
  6. Step 6: Final answer
    x = 5,341.06

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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.