Home / 3,526.80-4,876.28-3,089.40

Finding the Fourth Proportional to 3,526.80, 4,876.28 and 3,089.40

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Solution

The fourth proportional to 3,526.80, 4,876.28 and 3,089.40 is: 4,271.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,526.80 : 4,876.28 = 3,089.40 : x
  2. Step 2: Convert to fraction form
    3,526.80/4,876.28 = 3,089.40/x
  3. Step 3: Cross multiply
    3,526.80x = 4,876.28 × 3,089.40
  4. Step 4: Simplify right side
    3,526.80x = 15,064,779.43
  5. Step 5: Solve for x
    x = 15,064,779.43/3,526.80
  6. Step 6: Final answer
    x = 4,271.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.