Home / 2,615.37-3,924.20-971.56

Finding the Fourth Proportional to 2,615.37, 3,924.20 and 971.56

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Solution

The fourth proportional to 2,615.37, 3,924.20 and 971.56 is: 1,457.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.37 : 3,924.20 = 971.56 : x
  2. Step 2: Convert to fraction form
    2,615.37/3,924.20 = 971.56/x
  3. Step 3: Cross multiply
    2,615.37x = 3,924.20 × 971.56
  4. Step 4: Simplify right side
    2,615.37x = 3,812,595.75
  5. Step 5: Solve for x
    x = 3,812,595.75/2,615.37
  6. Step 6: Final answer
    x = 1,457.77

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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.