Home / 4,870.10-6,720.81-2,774.18

Finding the Fourth Proportional to 4,870.10, 6,720.81 and 2,774.18

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Solution

The fourth proportional to 4,870.10, 6,720.81 and 2,774.18 is: 3,828.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.10 : 6,720.81 = 2,774.18 : x
  2. Step 2: Convert to fraction form
    4,870.10/6,720.81 = 2,774.18/x
  3. Step 3: Cross multiply
    4,870.10x = 6,720.81 × 2,774.18
  4. Step 4: Simplify right side
    4,870.10x = 18,644,736.69
  5. Step 5: Solve for x
    x = 18,644,736.69/4,870.10
  6. Step 6: Final answer
    x = 3,828.41

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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.