Home / 5,136.95-7,705.33-1,852.20

Finding the Fourth Proportional to 5,136.95, 7,705.33 and 1,852.20

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Solution

The fourth proportional to 5,136.95, 7,705.33 and 1,852.20 is: 2,778.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.95 : 7,705.33 = 1,852.20 : x
  2. Step 2: Convert to fraction form
    5,136.95/7,705.33 = 1,852.20/x
  3. Step 3: Cross multiply
    5,136.95x = 7,705.33 × 1,852.20
  4. Step 4: Simplify right side
    5,136.95x = 14,271,807.60
  5. Step 5: Solve for x
    x = 14,271,807.60/5,136.95
  6. Step 6: Final answer
    x = 2,778.26

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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.