Home / 1,973.60-2,955.20-1,581.76

Finding the Fourth Proportional to 1,973.60, 2,955.20 and 1,581.76

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Solution

The fourth proportional to 1,973.60, 2,955.20 and 1,581.76 is: 2,368.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.60 : 2,955.20 = 1,581.76 : x
  2. Step 2: Convert to fraction form
    1,973.60/2,955.20 = 1,581.76/x
  3. Step 3: Cross multiply
    1,973.60x = 2,955.20 × 1,581.76
  4. Step 4: Simplify right side
    1,973.60x = 4,674,417.15
  5. Step 5: Solve for x
    x = 4,674,417.15/1,973.60
  6. Step 6: Final answer
    x = 2,368.47

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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.