Home / 2,947.80-4,421.70-1,852.93

Finding the Fourth Proportional to 2,947.80, 4,421.70 and 1,852.93

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Solution

The fourth proportional to 2,947.80, 4,421.70 and 1,852.93 is: 2,779.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.80 : 4,421.70 = 1,852.93 : x
  2. Step 2: Convert to fraction form
    2,947.80/4,421.70 = 1,852.93/x
  3. Step 3: Cross multiply
    2,947.80x = 4,421.70 × 1,852.93
  4. Step 4: Simplify right side
    2,947.80x = 8,193,100.58
  5. Step 5: Solve for x
    x = 8,193,100.58/2,947.80
  6. Step 6: Final answer
    x = 2,779.40

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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.