Home / 5,256.90-7,886.76-1,970.28

Finding the Fourth Proportional to 5,256.90, 7,886.76 and 1,970.28

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Solution

The fourth proportional to 5,256.90, 7,886.76 and 1,970.28 is: 2,955.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256.90 : 7,886.76 = 1,970.28 : x
  2. Step 2: Convert to fraction form
    5,256.90/7,886.76 = 1,970.28/x
  3. Step 3: Cross multiply
    5,256.90x = 7,886.76 × 1,970.28
  4. Step 4: Simplify right side
    5,256.90x = 15,539,125.49
  5. Step 5: Solve for x
    x = 15,539,125.49/5,256.90
  6. Step 6: Final answer
    x = 2,955.95

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1.5x scale

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.