Home / 4,970.64-6,860.76-2,875.98

Finding the Fourth Proportional to 4,970.64, 6,860.76 and 2,875.98

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Solution

The fourth proportional to 4,970.64, 6,860.76 and 2,875.98 is: 3,969.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.64 : 6,860.76 = 2,875.98 : x
  2. Step 2: Convert to fraction form
    4,970.64/6,860.76 = 2,875.98/x
  3. Step 3: Cross multiply
    4,970.64x = 6,860.76 × 2,875.98
  4. Step 4: Simplify right side
    4,970.64x = 19,731,408.54
  5. Step 5: Solve for x
    x = 19,731,408.54/4,970.64
  6. Step 6: Final answer
    x = 3,969.59

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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.