Home / 5,271.84-7,903.09-1,985.07

Finding the Fourth Proportional to 5,271.84, 7,903.09 and 1,985.07

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Solution

The fourth proportional to 5,271.84, 7,903.09 and 1,985.07 is: 2,975.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.84 : 7,903.09 = 1,985.07 : x
  2. Step 2: Convert to fraction form
    5,271.84/7,903.09 = 1,985.07/x
  3. Step 3: Cross multiply
    5,271.84x = 7,903.09 × 1,985.07
  4. Step 4: Simplify right side
    5,271.84x = 15,688,186.87
  5. Step 5: Solve for x
    x = 15,688,186.87/5,271.84
  6. Step 6: Final answer
    x = 2,975.85

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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.