Home / 3,509.61-5,271.70-2,784.26

Finding the Fourth Proportional to 3,509.61, 5,271.70 and 2,784.26

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Solution

The fourth proportional to 3,509.61, 5,271.70 and 2,784.26 is: 4,182.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.61 : 5,271.70 = 2,784.26 : x
  2. Step 2: Convert to fraction form
    3,509.61/5,271.70 = 2,784.26/x
  3. Step 3: Cross multiply
    3,509.61x = 5,271.70 × 2,784.26
  4. Step 4: Simplify right side
    3,509.61x = 14,677,783.44
  5. Step 5: Solve for x
    x = 14,677,783.44/3,509.61
  6. Step 6: Final answer
    x = 4,182.17

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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.