Home / 2,953.02-4,430.26-872.98

Finding the Fourth Proportional to 2,953.02, 4,430.26 and 872.98

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Solution

The fourth proportional to 2,953.02, 4,430.26 and 872.98 is: 1,309.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.02 : 4,430.26 = 872.98 : x
  2. Step 2: Convert to fraction form
    2,953.02/4,430.26 = 872.98/x
  3. Step 3: Cross multiply
    2,953.02x = 4,430.26 × 872.98
  4. Step 4: Simplify right side
    2,953.02x = 3,867,528.37
  5. Step 5: Solve for x
    x = 3,867,528.37/2,953.02
  6. Step 6: Final answer
    x = 1,309.69

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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.