Home / 2,973.40-4,455.30-1,875.80

Finding the Fourth Proportional to 2,973.40, 4,455.30 and 1,875.80

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Solution

The fourth proportional to 2,973.40, 4,455.30 and 1,875.80 is: 2,810.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,973.40 : 4,455.30 = 1,875.80 : x
  2. Step 2: Convert to fraction form
    2,973.40/4,455.30 = 1,875.80/x
  3. Step 3: Cross multiply
    2,973.40x = 4,455.30 × 1,875.80
  4. Step 4: Simplify right side
    2,973.40x = 8,357,251.74
  5. Step 5: Solve for x
    x = 8,357,251.74/2,973.40
  6. Step 6: Final answer
    x = 2,810.67

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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.