Home / 2,931.93-4,051.19-2,307.42

Finding the Fourth Proportional to 2,931.93, 4,051.19 and 2,307.42

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Solution

The fourth proportional to 2,931.93, 4,051.19 and 2,307.42 is: 3,188.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.93 : 4,051.19 = 2,307.42 : x
  2. Step 2: Convert to fraction form
    2,931.93/4,051.19 = 2,307.42/x
  3. Step 3: Cross multiply
    2,931.93x = 4,051.19 × 2,307.42
  4. Step 4: Simplify right side
    2,931.93x = 9,347,802.60
  5. Step 5: Solve for x
    x = 9,347,802.60/2,931.93
  6. Step 6: Final answer
    x = 3,188.28

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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.