Home / 4,328.80-6,494.40-2,870.80

Finding the Fourth Proportional to 4,328.80, 6,494.40 and 2,870.80

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Solution

The fourth proportional to 4,328.80, 6,494.40 and 2,870.80 is: 4,307.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,328.80 : 6,494.40 = 2,870.80 : x
  2. Step 2: Convert to fraction form
    4,328.80/6,494.40 = 2,870.80/x
  3. Step 3: Cross multiply
    4,328.80x = 6,494.40 × 2,870.80
  4. Step 4: Simplify right side
    4,328.80x = 18,644,123.52
  5. Step 5: Solve for x
    x = 18,644,123.52/4,328.80
  6. Step 6: Final answer
    x = 4,307.00

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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.