Home / 5,485.95-7,570.40-3,127.64

Finding the Fourth Proportional to 5,485.95, 7,570.40 and 3,127.64

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Solution

The fourth proportional to 5,485.95, 7,570.40 and 3,127.64 is: 4,316.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.95 : 7,570.40 = 3,127.64 : x
  2. Step 2: Convert to fraction form
    5,485.95/7,570.40 = 3,127.64/x
  3. Step 3: Cross multiply
    5,485.95x = 7,570.40 × 3,127.64
  4. Step 4: Simplify right side
    5,485.95x = 23,677,432.37
  5. Step 5: Solve for x
    x = 23,677,432.37/5,485.95
  6. Step 6: Final answer
    x = 4,316.01

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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.