Home / 3,140.07-4,706.02-1,289.08

Finding the Fourth Proportional to 3,140.07, 4,706.02 and 1,289.08

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Solution

The fourth proportional to 3,140.07, 4,706.02 and 1,289.08 is: 1,931.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.07 : 4,706.02 = 1,289.08 : x
  2. Step 2: Convert to fraction form
    3,140.07/4,706.02 = 1,289.08/x
  3. Step 3: Cross multiply
    3,140.07x = 4,706.02 × 1,289.08
  4. Step 4: Simplify right side
    3,140.07x = 6,066,436.26
  5. Step 5: Solve for x
    x = 6,066,436.26/3,140.07
  6. Step 6: Final answer
    x = 1,931.94

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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.