Home / 5,157.06-7,117.10-2,918.93

Finding the Fourth Proportional to 5,157.06, 7,117.10 and 2,918.93

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Solution

The fourth proportional to 5,157.06, 7,117.10 and 2,918.93 is: 4,028.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.06 : 7,117.10 = 2,918.93 : x
  2. Step 2: Convert to fraction form
    5,157.06/7,117.10 = 2,918.93/x
  3. Step 3: Cross multiply
    5,157.06x = 7,117.10 × 2,918.93
  4. Step 4: Simplify right side
    5,157.06x = 20,774,302.11
  5. Step 5: Solve for x
    x = 20,774,302.11/5,157.06
  6. Step 6: Final answer
    x = 4,028.32

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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.