Home / 6,900.48-10,350.86-1,970.28

Finding the Fourth Proportional to 6,900.48, 10,350.86 and 1,970.28

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Solution

The fourth proportional to 6,900.48, 10,350.86 and 1,970.28 is: 2,955.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,900.48 : 10,350.86 = 1,970.28 : x
  2. Step 2: Convert to fraction form
    6,900.48/10,350.86 = 1,970.28/x
  3. Step 3: Cross multiply
    6,900.48x = 10,350.86 × 1,970.28
  4. Step 4: Simplify right side
    6,900.48x = 20,394,082.59
  5. Step 5: Solve for x
    x = 20,394,082.59/6,900.48
  6. Step 6: Final answer
    x = 2,955.46

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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.