Home / 4,970.88-6,856.95-2,980.28

Finding the Fourth Proportional to 4,970.88, 6,856.95 and 2,980.28

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Solution

The fourth proportional to 4,970.88, 6,856.95 and 2,980.28 is: 4,111.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.88 : 6,856.95 = 2,980.28 : x
  2. Step 2: Convert to fraction form
    4,970.88/6,856.95 = 2,980.28/x
  3. Step 3: Cross multiply
    4,970.88x = 6,856.95 × 2,980.28
  4. Step 4: Simplify right side
    4,970.88x = 20,435,596.66
  5. Step 5: Solve for x
    x = 20,435,596.66/4,970.88
  6. Step 6: Final answer
    x = 4,111.06

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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.