Home / 3,280.02-4,920.04-971.34

Finding the Fourth Proportional to 3,280.02, 4,920.04 and 971.34

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Solution

The fourth proportional to 3,280.02, 4,920.04 and 971.34 is: 1,457.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.02 : 4,920.04 = 971.34 : x
  2. Step 2: Convert to fraction form
    3,280.02/4,920.04 = 971.34/x
  3. Step 3: Cross multiply
    3,280.02x = 4,920.04 × 971.34
  4. Step 4: Simplify right side
    3,280.02x = 4,779,031.65
  5. Step 5: Solve for x
    x = 4,779,031.65/3,280.02
  6. Step 6: Final answer
    x = 1,457.01

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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.