Home / 4,870.29-7,312.74-2,792.64

Finding the Fourth Proportional to 4,870.29, 7,312.74 and 2,792.64

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Solution

The fourth proportional to 4,870.29, 7,312.74 and 2,792.64 is: 4,193.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.29 : 7,312.74 = 2,792.64 : x
  2. Step 2: Convert to fraction form
    4,870.29/7,312.74 = 2,792.64/x
  3. Step 3: Cross multiply
    4,870.29x = 7,312.74 × 2,792.64
  4. Step 4: Simplify right side
    4,870.29x = 20,421,850.23
  5. Step 5: Solve for x
    x = 20,421,850.23/4,870.29
  6. Step 6: Final answer
    x = 4,193.15

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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.